CN215420176U

CN215420176U - Large-module photovoltaic tracking device

Info

Publication number: CN215420176U
Application number: CN202121865266.4U
Authority: CN
Inventors: 罗易; 陈创修; 李科庆; 薛新颖; 李春阳; 王仕鹏; 周承军
Original assignee: Zhejiang Astronergy New Energy Development Co Ltd
Current assignee: Zhejiang Astronergy New Energy Development Co Ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2022-01-04
Anticipated expiration: 2031-08-10

Abstract

The utility model discloses a large-module photovoltaic tracking device which comprises a plurality of photovoltaic units which are arranged side by side, wherein each photovoltaic unit comprises an upright post, a rotary module arranged at the end part of the upright post, a rotary main shaft driven by the rotary module and a photovoltaic module arranged on the rotary main shaft, the central shafts of the rotary main shafts of all the photovoltaic units are collinear, and the rotary main shafts are fixed through a connecting module. Above-mentioned big subassembly photovoltaic tracking means through setting up a plurality of drive nodes, makes overall structure's load dispersion to each photovoltaic unit, and the drive position durability of protection each photovoltaic unit is higher, makes the system atress more reasonable simultaneously, can bear bigger load, improves durability and life.

Description

Large-module photovoltaic tracking device

Technical Field

The utility model relates to the technical field of photovoltaic buildings, in particular to a large-module photovoltaic tracking device.

Background

The photovoltaic tracking device is an automatic tracking system of a solar photovoltaic array, and sunlight directly irradiates the photovoltaic array by tracking the movement of the sun in real time, so that the solar radiation quantity received by the photovoltaic array is increased, and the total generating capacity of a solar photovoltaic power generation system is improved.

The existing photovoltaic tracking device comprises a main shaft, a stand column for supporting the main shaft and a photovoltaic assembly arranged on the main shaft, wherein the main shaft can do rotary motion on the stand column, so that the motion requirement of photovoltaic tracking is met. At present, along with the trend that photovoltaic tracking device develops into big subassembly, the subassembly size grow, receives the wind-force face to increase, and the system need bear bigger load, and current photovoltaic tracking device no longer satisfies the operation requirement, has following defect: after the existing photovoltaic tracker array is lengthened, a single driving node is still maintained, so that the stress of the whole structure is unreasonable, and the structure at the driving position is easy to damage; the assembly is developed into a large size, the deflection torque of the system is increased, and the load borne by the system is further increased; the land waste is serious, the system cost is high, and the structure is complex and the installation is inconvenient.

Therefore, how to provide a large-module photovoltaic tracking device that solves the above technical problems is a technical problem that needs to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a large-assembly photovoltaic tracking device, which has the advantages that the load of the whole structure is dispersed to each photovoltaic unit by arranging a plurality of driving nodes, the driving positions of each photovoltaic unit are protected, the durability is higher, meanwhile, the stress of the system is more reasonable, the larger load can be borne, the durability is improved, and the service life is prolonged.

In order to achieve the purpose, the utility model provides a large-module photovoltaic tracking device which comprises a plurality of photovoltaic units which are arranged side by side, wherein each photovoltaic unit comprises an upright post, a rotary module arranged at the end part of the upright post, a rotary main shaft driven by the rotary module and a photovoltaic module arranged on the rotary main shaft, the central shafts of the rotary main shafts of all the photovoltaic units are collinear, and the rotary main shafts are fixed through a connecting assembly.

Preferably, the gyration main shaft includes continuous sunken straight section and the crooked section of come-up, the height of sunken straight section is less than the height of the crooked section of come-up, photovoltaic module locates the sunken straight section, gyration subassembly locates the crooked section of come-up.

Preferably, the photovoltaic module comprises a support component fixed on the lower horizontal straight section, and the support component is used for fixing the photovoltaic module.

Preferably, the support assembly includes a pair of support members, and the photovoltaic assembly is secured between the pair of support members.

Preferably, the middle part of the supporting member is fixed to the sinking flat section, and the two ends of the supporting member are distributed on two sides of the rotary main shaft, so that the photovoltaic module is fixed on two sides of the rotary main shaft.

Preferably, the supporting piece comprises a purline and an inclined strut which are combined to form a triangular strut structure, the photovoltaic assembly is fixed to the purline, and two ends of the inclined strut are respectively fixed to the purline and the rotary main shaft.

Preferably, the supporting piece further comprises a locking belt and a special-shaped cushion block, the special-shaped cushion block is installed in the groove of the purline, and the locking belt surrounds the rotary main shaft, penetrates through the special-shaped cushion block and fixes the purline and the inclined strut.

Preferably, the end of the upright post is provided with a support for installing and fixing the rotating assembly.

Preferably, the revolving assembly comprises a motor and a speed reducer connected with the motor, and the speed reducer is connected with the revolving main shaft.

Preferably, the motors of all the photovoltaic units are connected with the same control box to realize control linkage.

Compared with the prior art, the large-module photovoltaic tracking device provided by the utility model comprises a plurality of photovoltaic unit rotating assemblies which are arranged side by side, each photovoltaic unit comprises an upright post, a rotating assembly, a rotating main shaft and a photovoltaic assembly, the rotating assemblies are arranged at the end parts of the upright posts, the rotating assemblies drive the rotating main shafts to realize rotating action, the photovoltaic assemblies are arranged on the rotating main shafts, the central shafts of the rotating main shafts of all the photovoltaic units are collinear, and the rotating main shafts are fixed through connecting assemblies.

The complete rotary main shaft of the large-assembly photovoltaic tracking device is formed by combining single rotary main shafts of a plurality of photovoltaic units, the rotary main shafts are coaxial, different rotary main shafts are fixed through connecting components, the complete rotary main shaft is provided with a plurality of driving positions, namely, the single rotary assemblies of the plurality of photovoltaic units, namely, when the large-assembly photovoltaic tracking device performs photovoltaic tracking action, the rotary assemblies at the plurality of driving positions act to realize the rotary action of the whole rotary main shaft and the photovoltaic assemblies thereof; compare in current photovoltaic tracking device's single drive node, this big subassembly photovoltaic tracking device makes overall structure's load disperse to each photovoltaic unit through setting up a plurality of drive nodes, and the drive position durability of protecting each photovoltaic unit is higher, makes the system atress more reasonable simultaneously, can bear bigger load, improves durability and life.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a split perspective view of a large assembly photovoltaic tracking apparatus provided by an embodiment of the present invention;

fig. 2 is a split plan view of a large assembly photovoltaic tracking apparatus provided by an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of the swivel assembly of FIG. 1;

FIG. 4 is an enlarged view of a portion of the connection assembly of FIG. 1;

FIG. 5 is a schematic illustration of a support assembly according to an embodiment of the present invention, shown in a disassembled configuration;

fig. 6 is a schematic structural diagram of a support provided in an embodiment of the present invention.

Wherein:

10-upright column, 11-support, 12-rotary main shaft, 13-rotary component, 14-support component, 15-photovoltaic component, 16-connecting component, 111-first connecting part, 112-second connecting part, 121-lower horizontal straight section, 122-upper floating bending section, 131-motor, 132-speed reducer, 141-purlin, 142-diagonal brace, 143-locking belt and 144-special-shaped cushion block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order that those skilled in the art will better understand the disclosure, the utility model will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 6, in which fig. 1 is a disassembled perspective view of a large-module photovoltaic tracking device provided in an embodiment of the present invention, fig. 2 is a disassembled plan view of the large-module photovoltaic tracking device provided in the embodiment of the present invention, fig. 3 is a partially enlarged schematic view of a revolving module in fig. 1, fig. 4 is a partially enlarged schematic view of a connecting module in fig. 1, fig. 5 is a structural and disassembled schematic view of a supporting module provided in the embodiment of the present invention, and fig. 6 is a structural schematic view of a support provided in the embodiment of the present invention.

In a first specific embodiment, the large-assembly photovoltaic tracking device provided by the utility model comprises a plurality of photovoltaic units, wherein each photovoltaic unit comprises a stand column 10, a rotating assembly 13, a rotating main shaft 12 and a photovoltaic assembly 15.

Wherein, with the whole of photovoltaic unit constitution, all photovoltaic units set up side by side, guarantee the center axis collineation of all photovoltaic unit's gyration main shaft 12, fix through coupling assembling 16 between the gyration main shaft 12.

In the photovoltaic unit, a rotating assembly 13 is arranged at the end of the upright post 10, a rotating main shaft 12 is mounted and driven by the rotating assembly 13 to realize rotating action, and a photovoltaic assembly 15 is rotatably fixed on the rotating main shaft 12.

In this embodiment, when the large-module photovoltaic tracking device performs photovoltaic tracking, the rotation module 13 drives and controls the rotation of the rotation spindle 12, and the rotation spindle 12 drives the photovoltaic modules 15 connected thereto to move together, so that the moving photovoltaic modules 15 realize tracking effect. It should be noted that the above-mentioned revolving main shaft 12 does not refer to a single revolving main shaft 12 of a certain photovoltaic unit, but refers to an integral revolving main shaft 12 composed of the single revolving main shafts 12 of all photovoltaic units; the unitary slew spindle 12 has a plurality of drive positions, each drive position corresponding to one of the slew assemblies 13.

Compare in current photovoltaic tracking device's single drive node, this big subassembly photovoltaic tracking device is through setting up a plurality of drive nodes, rather than traditional focus on a little, make overall structure's load disperse to each photovoltaic unit, the drive position durability of protecting each photovoltaic unit is higher, it is more reasonable to make the system atress simultaneously, can bear bigger load, for example, can bear bigger wind-force, stronger wind-resistant strength has, better strong wind protection, durability and life are improved.

It should be noted that one of the core improvements of the present invention is to adopt a multi-point driving manner, and as to the working principle and the specific structure of the photovoltaic tracking apparatus, such as the rotation principle and the rotation structure of the rotation assembly 13, which do not belong to the improvement content of the present invention, reference may be made to the prior art, and details are not repeated here.

For example, the connecting assemblies 16 may employ hoops, and each connecting assembly 16 includes a pair of hoops, and two adjacent rotary spindles 12 are locked and fixed after the ends are aligned by the pair of hoops.

For better technical effect, the rotary main shaft 12 adopts a downward bending form, so that the center of the combined rotary main shaft 12 and the photovoltaic module 15 is reduced, the center is closer to the rotation center of the rotary main shaft 12, and the nearly zero deflection torque of the whole device is realized. In a popular way, the rotary main shafts 12 near a plurality of driving nodes are all in a downward bending type, so that the deflection torque can be fully eliminated, and the energy consumption of the device can be reduced.

Specifically, the main rotating shaft 12 includes a lower flat straight section 121 and an upper curved section 122 connected to each other, the lower flat straight section 121 is lower than the upper curved section 122, the photovoltaic module 15 is disposed in the lower flat straight section 121, and the rotating module 13 is disposed in the upper curved section 122.

It should be noted that, in the conventional straight main shaft, the structure is raised by the photovoltaic module 15 and the mounting accessories, and the center of the whole rotating structure is higher than the rotating center. In the present embodiment, in the length direction of the rotary main shaft 12, the downward-sinking flat straight section 121 is equivalent to the flat section after the upward-floating curved section 122 is bent downward, and the upward-floating curved section 122 is equivalent to the curved section after the upward-bending of the downward-sinking flat straight section 121; the upper floating bending section 122 is coaxially connected with the rotating assembly 13, which is equivalent to a rotating center, the lower sinking flat straight section 121 is installed and connected with the photovoltaic assembly 15, which is equivalent to a center after combination, and the position of the center relative to the rotating center can be reduced to some extent because the lower sinking flat straight section 121 is lower than the upper floating bending section 122, and the whole device is approximately zero deflection torque through multi-point lower bending.

Further, a support assembly 14 for fixing the photovoltaic assembly 15 is included, and the support assembly 14 is fixed on the sinking flat section 121.

It should be noted that the structural form of the supporting component 14 is not specifically limited in this embodiment, that is, as for different types of structures such as a frame, a plate, a beam, etc., as long as the photovoltaic module 15 can be mounted and fixed on the sinking flat section 121, it is within the scope of the description of this embodiment.

Illustratively, the support assembly 14 includes a pair of support members between which the photovoltaic assembly 15 is secured.

In this embodiment, a pair of supporting members are respectively fixed to the lower horizontal straight section 121 through a threaded fastener, an installation position is provided for the photovoltaic module 15 between the pair of supporting members, and two sides of the photovoltaic module 15 are respectively fixed to the supporting members through threaded fasteners, so as to realize installation and fixation on the rotary main shaft 12. It should be noted that the photovoltaic module 15 installed between a pair of supporting members may be a single piece or multiple pieces in parallel, and the scope of the present embodiment should also be considered.

Furthermore, the middle of the supporting member is fixed to the lower flat section 121, and the two ends of the supporting member are distributed on the two sides of the rotating main shaft 12, so as to fix the photovoltaic module 15 on the two sides of the rotating main shaft 12.

In the present embodiment, the support member may adopt a bilateral symmetric structure, and the photovoltaic module 15 may be fixed at both left and right ends of the support member, that is, the installation fixing position of the photovoltaic module 15 includes, but is not limited to, either the left or right side of the main rotation shaft 12, and may also be installed at both left and right sides.

It should be noted that the above-mentioned rotary main shaft 12 can be provided with different cross-sectional shapes, such as regular rectangle, or irregular other shapes, as required, and shall also fall within the scope of the present embodiment.

When the section of the rotary main shaft 12 is rectangular, the supporting piece can adopt a triangular support structure consisting of a fin-shaped inclined support, a purline and an inclined support mounting piece; when the section of the rotary main shaft 12 is a rhombus, the following triangular support structure can be adopted.

Illustratively, the supporting member comprises a purline 141 and an inclined strut 142 which are combined to form a triangular strut structure, the photovoltaic module 15 is fixed to the purline 141, and two ends of the inclined strut 142 are respectively fixed to the purline 141 and the rotary main shaft 12.

In the embodiment, the photovoltaic module 15 is mounted on the purlin 141 through bolts, the multiple supporting points of the inclined strut 142 are connected with the purlin 141 through rivets, and the side part of the inclined strut 142 is tightly attached to the side wall of the rhombus-shaped main rotating shaft 12. The triangular support structure is a multi-point support, and the purline 141 has a plurality of support points to share load through the multi-point support triangular support structure, so that the bearing capacity of the structure is improved, and hidden cracks of large-size components are reduced; the traditional multi-rod piece mounting structure can be simplified through the integrated triangular support structure, and the mounting speed is improved.

Further, the supporting member further comprises a locking belt 143 and a profiled cushion block 144, the profiled cushion block 144 is installed in a groove of the purline 141, and the locking belt 143 surrounds the rotary main shaft 12 and penetrates through and fixes the profiled cushion block 144, the purline 141 and the inclined strut 142.

In this embodiment, the special-shaped cushion block 144 is in an unclosed annular shape and is installed in a triangular support structure on the rotary main shaft 12 with the rhombus-shaped cross section, the special-shaped cushion block 144 is plugged in a groove of the purlin 141 to play a role in reinforcing the purlin 141 and assisting installation of a tie of the locking belt 143, the locking belt 143 sequentially penetrates through the special-shaped cushion block 144, the purlin 141 and the inclined support 142, and the special-shaped cushion block, the purlin 141 and the inclined support 142 are converged at a lock catch of the locking belt 143 after surrounding the arc-shaped surface of the rhombus-shaped rotary main shaft 12, and the lock catch is a spiral lock catch and has a one-way self-locking function. On the basis, the device has the effect of multipoint self-locking wind-resistant protection.

The section of the rotary main shaft 12 is a rhombus formed by a plurality of straight edges and an arc edge, the upper part of the symmetrical structure is straight, the lower part of the symmetrical structure is bent, the torsion resistance is good, the bending resistance is stronger, the upper plane is convenient for structural installation, the lower arc is beneficial to structural locking, and the special-shaped cushion block 144 enables the locking belt 143 to shrink smoothly in the locking process, so that the locking reliability is improved.

In addition, the end of the upright 10 is provided with a support 11 for mounting and fixing the rotating assembly 13.

In this embodiment, the support 11 is a hollow butterfly-shaped rotary base structure, and includes a first connecting portion 111 and a second connecting portion 112 that are vertically connected, the first connecting portion 111 is connected to the rotary component 13 through a fastener after being perforated, and the second connecting portion 112 is connected to the upright post 10 through a fastener after being perforated.

On the basis of ensuring structural performances such as strength and the like, the cost of the component is reduced, and the cost of the system is further reduced.

In a specific embodiment, the rotation assembly 13 includes a motor 131 and a speed reducer 132 connected to the motor 131, and the speed reducer 132 is connected to the rotation main shaft 12.

In this embodiment, the motors 131 of all the photovoltaic units are connected to the same control box to realize control linkage.

Specifically, the plurality of speed reducers 132 may be linked by electrical control, that is, each speed reducer 132 is provided with one motor 131, and the plurality of motors 131 are controlled by the same control box. In addition, it is also possible to make one motor 131 drive one speed reducer 132 through mechanical linkage, that is, a commutator is provided, and the speed reducer 132 drives the other speed reducers 132 to rotate synchronously through mechanical linkage, which also belongs to the description scope of the embodiment.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The large-module photovoltaic tracking device provided by the utility model is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The utility model provides a big subassembly photovoltaic tracking means, its characterized in that includes a plurality of photovoltaic units side by side, every the photovoltaic unit includes stand (10), locates gyration subassembly (13) of stand (10) tip, by gyration subassembly (13) driven gyration main shaft (12) and locate photovoltaic module (15) of gyration main shaft (12), all the photovoltaic unit the center pin collineation of gyration main shaft (12), it is fixed through coupling assembling (16) between gyration main shaft (12).

2. Large assembly photovoltaic tracking device according to claim 1, characterized in that the revolving main shaft (12) comprises a lower flat straight section (121) and an upper curved section (122) connected to each other, the lower flat straight section (121) having a lower height than the upper curved section (122), the photovoltaic assembly (15) being arranged in the lower flat straight section (121), and the revolving assembly (13) being arranged in the upper curved section (122).

3. Large assembly photovoltaic tracking device according to claim 2, characterized by comprising a support assembly (14) fixed to the sink-flat straight section (121), the support assembly (14) being intended to fix the photovoltaic assembly (15).

4. Large assembly photovoltaic tracking device according to claim 3, characterized in that the supporting assembly (14) comprises a pair of supports, between which the photovoltaic assembly (15) is fixed.

5. Large assembly photovoltaic tracking device according to claim 4, characterized in that the support is fixed in the middle to the sink-and-level section (121) and distributed at both ends on both sides of the main revolving shaft (12) to enable fixation of the photovoltaic assembly (15) on both sides of the main revolving shaft (12).

6. The large-assembly photovoltaic tracking device according to claim 5, wherein the supporting member comprises a purline (141) and a diagonal brace (142) which are combined to form a triangular brace structure, the photovoltaic assembly (15) is fixed to the purline (141), and two ends of the diagonal brace (142) are respectively fixed to the purline (141) and the rotation main shaft (12).

7. The large assembly photovoltaic tracking device according to claim 6, characterized in that the support further comprises a locking strip (143) and a profiled spacer (144), the profiled spacer (144) being mounted in a groove of the purlin (141), the locking strip (143) encircling the main axis of revolution (12) and passing through and fixing the profiled spacer (144), the purlin (141) and the diagonal brace (142).

8. Large assembly photovoltaic tracking device according to any one of claims 1 to 7, characterized in that the end of the upright (10) is provided with a seat (11) for mounting and fixing the swivelling assembly (13).

9. Large assembly photovoltaic tracking device according to claim 8, characterized in that the slewing assembly (13) comprises an electric motor (131) and a speed reducer (132) connected to the electric motor (131), the speed reducer (132) being connected to the slewing spindle (12).

10. Large assembly photovoltaic tracking device according to claim 9, characterized in that the motors (131) of all the photovoltaic units are connected to the same control box to realize the control linkage.